The energy carried by one photon is directly proportional to its 
frequency.  So the photon energy is greatest for the electromagnetic 
waves with the highest frequency / shortest wavelengths.  
That's why when you get past visible light and on up through ultraviolet, 
X-rays, and gamma rays, the radiation becomes dangerous ==> each 
photon carries enough energy to tear electrons away from their atoms, 
ripping molecules apart and damaging cells.
The photon with the highest energy is a gamma-ray photon. 
        
             
        
        
        
Answer:
Explanation:
From the given information:
We know that the thin spherical shell is on a uniform surface which implies that both the inside and outside the charge of the sphere are equal, Then
The volume charge distribution relates to the radial direction at r = R
∴



To find the constant k, we  examine the total charge Q which is:


∴



Thus;




Hence, from equation (1), if k = 


To verify the units:

↓         ↓            ↓
c/m³    c/m³  ×   1/m             
Thus, the units are verified.
The integrated charge Q



 since
    since  

 
        
             
        
        
        
Answer:
The minimum wall thickness required for the spherical tank is 0.0189 m
Explanation:
Given data:
d = inside diameter = 8.1 m
P = internal pressure = 1.26 MPa
σ = 270 MPa
factor of safety = 2
Question: Determine the minimum wall thickness required for the spherical tank, tmin = ?
The allow factor of safety:

The minimun wall thickness:
